fix(sidebar): use slugurl instead of url for link to documentation. Fixes #52

discuss_data/templates/nav-sidebar.html

-{% load static i18n compress activeurl core_tags %}
+{% load static i18n compress activeurl core_tags wagtailcore_tags %}
 <nav class="col-md-2 d-none d-md-block sidebar">
     <div class="sidebar-sticky">
 
@@ -41,13 +41,13 @@
                 </a>
             </li>
             {% endif %}
-            <li class="nav-item {% nav_active request.path "/users/public" %}">
+            <li class="nav-item {% nav_active request.path "/users/" %}">
                 <a class="nav-link i i-people" href="{% url 'ddusers:search' %}">
                     {% trans "People" %}
                 </a>
             </li>
             <li class="nav-item {% nav_active request.path "/documentation" %}">
-                <a class="nav-link i i-ds-upload" href="/documentation">
+                <a class="nav-link i i-ds-upload" href="{% slugurl 'discuss-data-documentation' %}">
                     {% trans "Documentation" %}
                 </a>
             </li>